Theoretical analysis and experimental varification on design of transmission line for subnanosecond risetime EMP simulator

The constitution, primary technique target and the transmission line structure of the subnanosecond EMP simulator are introduced in this paper. The transmission and spatial distribution of the electric-field were simulated numerically by Finite Difference-Time Domain method. and the real electric-field distribution was measured, Some conclusions drawn from the data are that the rise time of different position is invariable, the rise time is about 800ps, the work zone of the simulator is 1 m×1 m×1 m, and the electric-field of the work zone is well-proportional. The actual spatial distribution of the electric-field agrees well with the numerically results.